i download alot of music videos. just something i been doing since june. i had 515 in total before i defragmented my hard drive today for the first time and they're all gone. they took up 29 gigs in total but my used hard drive space hasnt dropped. so i went to search to try to find some of the file names and nothing. i made a folder named "music and vids" when i had the videos and the only thing thats left is the folder. when i open it, it takes like 10 seconds to open but then its empty. i even moved a file from another folder to the "music and vids" folder and when i opened it, it was still empty. and i going to have to do a system restore? please help.